阅读对话。
(1)— Mom, come quickly. There is a bird in my bedroom! — A bird? Where is it?
— It's under my bed! It can't fly! ________
(2)— Ok, I'm coming! Is it still under the bed?
— No, it is on the chair now. ________
(3)— Where is it? Let's catch and help it!
— It's behind the radio. ________
(4)— But it isn't here.
— Oh, mom. Look, it is in the box now. I can catch it. ________